Re: Selector Not Recognized
Re: Selector Not Recognized
- Subject: Re: Selector Not Recognized
- From: "Shawn Erickson" <email@hidden>
- Date: Tue, 11 Jul 2006 15:02:38 -0700
On 7/11/06, David Alter <email@hidden> wrote:
I have a sub class of an object. The sub class has no additional
instance variables, just some additional methods. I get a pointer to
the parent object and I want to call methods available in the sub
classed objects. So I tried to case it and make the call. To this I
get "selector not recognized". Is there a way to do this? I can do
this in C++.
Sorry not understanding you fully... oh and please start class names
with upper case letters. :)
Example bellow if needed
@interface myParent : NSObject {
int somedata
}
- (int) getSomeDataPlusOne; //
@end
In the main body of code
myParent * myObj = [[myParent alloc] init];
mySub * mysub = (mySub *) myObj;
int val = [mysub getSomeDataPlusOne]; // It chokes here with
"selector not recognized"
Now you have me even more confused (omitted to much context)... :)
Is "myParent" class the super class of "mySub" class? ...and you want
a method implemented by "mySub" class to call a method provided by
"mySub" superclass?
If so note you can message "super"...
@interface SuperClass : NSObject {
}
- (void) doThis;
@end
@interface SubClass : SuperClass {
}
- (void) doThat;
@end
@implementation SubClass
- (void) doThat
{
[super doThis];
}
-Shawn
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